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制作盆景的树桩,除自培自育外,一般有两种来源,一是从山上直接挖取;二是从花卉市场购卖。不管从什么渠道得来,为了适应日后上盆的需要,桩头大部分的根系都必须狠狠地修剪,极少有须根保留存在。这样的树桩,如果随便用土栽培,极难成活。要使剪裁的树桩成活,用什么样的培养土至关重要。被剪裁的树桩几乎等于扦插苗一样。一般书上介绍的都是菜园土(栽培过蔬菜的园土)。园土是耕作层,是施过有几肥及化肥的。这样的园土带有大量的病菌及地下害虫卵。对新桩的发根成活极为不利。新桩所发出的又细又嫩的根与带有病菌的土壤接触后,会受病菌侵害而烂根。这样的下山桩极难成活,就是可以发点新芽,也会慢慢枯死。假如经数月始终是半死不活的新桩,你把它拔起来看看,大部分发出的新根都是腐烂、发黑的。
Tree bonsai bonsai production, in addition to self-training, there are two general sources, one directly from the hill to dig; the second is from the flower market sale. No matter what channels come from, in order to adapt to the needs of the basin in the future, most of the pile head roots must be severely pruned, very few fibrous roots remain. Such stumps, if easily cultivated with soil, extremely difficult to survive. To cultivate the cut stump, what kind of culture soil is essential. Tailored stumps are almost equal to cuttings. General books are introduced garden soil (cultivated vegetable garden). Garden soil is farming layer, is applied by a few fertilizer and fertilizer. This garden with a large number of bacteria and pests eggs. The new pile of hair root survival is extremely unfavorable. The new pile issued by the thin and tender roots and bacteria with the soil contact, will be affected by bacteria and rotten roots. This is extremely difficult to survive under the pile, that is, can send some new shoots, but also slowly dead. If, after months, a new pile that is half dead, you pull it up and look at it. Most of the new roots are rotten and black.